ANP 1106 Lecture Notes - Lecture 1: Dense Irregular Connective Tissue, Costal Cartilage, Hyaline Cartilage

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Frank Feiner

Document Summary

Hyaline cartilages: provide support with flexibility and resilience, most abundant skeletal cartilages, only fiber type in their matrix is fine collagen fibers (blue in figure) Elastic cartilages: like hyaline cartilage but contain more stretchy elastic fibers therefore better able to stand up to repeated bending, only found in two locations: external ear and epiglottis. Fibrocartilages: highly compressible with great tensile strength, consist of roughly parallel rows of chondrocytes alternating with thick collagen fibers, occur in sites that are subjected to both pressure and stretch, ex. Padlike cartilages (menisci) of the knee and the discs between vertebrae (red in figure above) Growth of cartilage: unlike bone, cartilage has a flexible matrix that can accommodate mitosis, cartilage grows in two ways, appositional growth. Interstitial growth: appositional growth, cartilage-forming cells in surrounding perichondrium secrete new matrix against the external face of the existing cartilage tissue.